VIVE Wave is an open platform and toolset that enables easy Mobile VR content development and high-performance device optimization for third party partners. The VIVE Wave VR SDK offers an open interface enabling interoperability between numerous mobile VR headsets and accessories such as the Vive Focus. This allows players with different VR devices an easy access pathway to your content.
The Wave SDK 3.1.4 was released on October 16, 2019. It includes the plugins for both Unity and Unreal Engine.
You can download the full packages including both Unity and Unreal plugins with sample applications and documentations from Wave SDK, or select the light-weight version of Unity or Unreal plugin if you’re considering the download speed.